They're a cheap set of IEMs with decent sound for the £10 price. Not much more to say.

Pros: Absolutely stellar build quality and design. Great sound quality and thumping bass that can go VERY deep. Great aesthetics. comfy for all those apart from the largest heads ( you can just stretch them out a bit).

Cons: Ear pads tend to get hard after a few months and get sweaty when worn for a while. Can be uncomfortable for some. Ever-so slightly recessed mids. In my opinion, the cable could do with having about 2 foot cut off. Highs can be harsh depending on your source/amp. Vocals could be better, especially with heavier/ more cluttered music with lots going on.
 
Price was £134 new.